Snapshot · Huberman Lab
Topical finasteride is partially absorbed systemically and typically reduces systemic DHT by about 30%, offering a middle ground between full systemic suppression and no effect.
Where this was said
At 39:35 · chapter starts 38:10
The final content segment addresses the most common male vanity concern: hair loss. Huberman asks whether systemic DHT blockers like Propecia cause the libido and motivation side effects their reputation suggests. Gillett pivots to topical alternatives. Topical caffeine can weakly crowd out androgens at the scalp follicle — effective enough to be clinically significant but mild enough to need combination with ketoconazole, another weak topical anti-androgen. A critical warning: topical spironolactone should not be used by males because its molecular size means it absorbs systemically. Topical finasteride also has systemic absorption, lowering systemic DHT by about 30% — meaningful but moderate. The standout option is topical dutasteride: its rapid half-life at lower topical doses means it acts locally without reaching systemic circulation at all, protecting hair without measurably affecting systemic DHT. Gillett notes he has seen this confirmed anecdotally in many patients on topical dutasteride therapy.
Topical caffeine and ketoconazole weakly block androgens at the scalp without systemic absorption. Topical finasteride still lowers systemic DHT by about 30%. But topical dutasteride, with its rapid local half-life, doesn't affect systemic DHT at all — making it the cleanest option for protecting hair without hormonal side effects.
Unlike topical finasteride, topical dutasteride does not affect systemic DHT at all, making it preferable for men who want hair protection without hormonal side effects.
Mental health challenges are nearly universal — BetterHelp's own research found the majority of Americans experiencing symptoms right now.
When applying for Medicaid to cover nursing home costs, there is a 5-year look-back period that can disqualify applicants who gave away or spent down assets.
A broken pipe filled the Bad Friends studio with what the hosts identified as hydrogen sulfide — microscopic fecal aeroparticles — that the crew denied smelling.
Fei-Fei Li's father's liver surgery performed by a da Vinci robot resulted in 10 times less blood loss than a typical open liver surgery, thanks to laparoscopic precision.
Approximately 115 million adults in the US currently have prediabetes, most of whom are unaware, according to the Lingo sponsor segment.
Drug overdose deaths in the US fell from 110,000 to 80,000 in 2024, and then to roughly 70,000 — the largest single-year drop the CDC has ever recorded.
Men's overdose death rate fell 27% in a single year, outpacing the 23% drop for women.
The steepest decline in overdose deaths was among 15–24-year-olds, whose rate fell 37%.
Fei-Fei Li observed that on a given hospital shift, nurses walk miles just to fetch medicine and supplies, illustrating a clear use case for assistive robotics in healthcare.
We use essential and analytics cookies to run Vuci. To understand how the site is used: Privacy Policy.
Install Vuci on your phone
Add it to your home screen for a faster, app-like experience.
Install Vuci on your phone
Tap the Share button, then “Add to Home Screen”.
A new version is available
Reload to get the latest Vuci.